Tractor mounted spray device



March 25, 1952 R. F. BROYHILL 2,590,677

TRACTOR MOUNTED SPRAY DEVICE Filed June 28. 1948 2 SHEETSQ-SHEET 2 INVENTOR. For Brqybfl/ Patented Mar. 25, 1952 UNITED STATES PATENT TRACTOR MOUNTED SPRAY DEVICE Roy F. Broyhill, Dakota City, Nebr.

Application June 28, 1948, Serial No. 35,715 (01. 299-45) 1 Claim.

My invention relates to a spray device which can be attached to tractors or other vehicles.

An object of my invention is to DIOVluB a spraying arrangement wherein weed killin fluids, or similar fluids are forced by means of a suitable pump arrangement through transversely extending pipe members and thence sprayed on the ground for the necessary purpose.

A further object of my invention is to provide such a spraying arrangement wherein the extending pipe members include resilient joint connections whereby when striking obstacles or when passing through a gateway, the resiliently mounted pipe members will be urged inwardly without any danger of undue shock, and for also passing through the restricted spaces.

- A further object of my invention is to provide means wherein the pipe members can be raised to a vertical position for similar reasons.

A further object of my invention is to provide means for raising the transverse pipe members to any desired elevation above the ground surface, maintaining the pipes in such elevation, and yet maintaining the spray nozzles at the same angle with respect to the ground regardless of the elevated position of the pipes.

' A further object of my invention is to provide a structure wherein the pipe members include certain sediment traps, as well as certain check valve means for guarding against dripping of the fluid to prevent an excessive killing action.

A further object of my invention is to provide guard means associated with the pipe members to prevent wastage of the sprayed fluid.

With these and other objects in view, my invention consists in the construction, arrangement, and combination or the various parts of my device, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claim, and illustrated in the accompanying drawings, in which:

Figure 1 is a plan view of my arrangement as attached to a tractor,

, Figure 2,is a side elevation of Figure 1,

Figure 3 is an enlarged detail, Figure 4 is an enlarged detail of one of th resilient joints, 7

Figure 5 is a forward view of a portion of Figure 4, and

Figure 6 is a detail of the modified form showing the spray guard arrangement.

My invention contemplates the provision of an arrangement which can be readily attached to a tractor, or any other similar vehicle, and wherein such attachment provides means for ejecting a sprayed liquid onto the ground surface, and wherein the extending portions of the arrangement .are jointed in such a way so that the extending portions can be folded inwardly or upwardly as desired, and to further provide other advantages in such an arrangement.

I have used the character lfl to designate-the hood of a tractor, the character; It therear wheels thereof, the character 12 the b'ase, and the character it the forwardwheels; thereof.

For attaching my arrangement to the tractor, I provide a pair of plates M which are suitably secured by means of bolts IE to the sides of the forward framework portions of the tractor. Attached to the plates M are a pair of further vertical plates to to which are pivotally attached at I! a pair of inner strap members 18 and outer strap members l9, which strap members normally extend horizontally, the inner strap members 18 being pivotally secured at 2!) to the short vertical angle members 2|, the outer straps is being pivotally attached at 22 to thelo n g er upwardly extending angle members23, the straps 19 being bent outwardlyas shown clearly: Figure l. Also pivotally secured at 24 to the plate It are a pair of further forwardly extend;- ing angle members 25 which are pivotally secured at 26 to the angle members 2|. r t r The plates it include'a series of equally sp aced openings 21 arranged at a fixed radial distance from the pivoting point 24, the members 25in cluding further openings 28 for the receptionjof the pins or bolts 29 whereby the pins Ze o-an be placed in any of the selected openings 2] consistent with the raised position of the unit, as will be explained hereinafter.

A transverse angle member 30 is joined at 3| '(see Figure 4) between the angle members23, and attached at 32 to the angle members 12 3.jare a pair of outwardly extending bars33 between which bars is received the square member, 34;, a bolt 35 passing through these members, Attached at 36 to the member 34 is a downwardly extend: ing bar 3'! to which isattached at, 38a fairly strong helical spring 39 which is attached at 40to a threaded stud il, which passes through an opening '42 in the downwardly turned flange 43 whichextends from the member 44 w' hichfis attached to one of the lower members, 33 at 45,and is positioned at right angles.,theret'0 .;as shown more clearly in Figure 5. A, nut, .18 threadably engaged with the stud Al to provide adjustable tensioning ofthespring 39. Extendllag from the member, is the vertical flange The member 34 is preferably in the shaped a square hollow tube, and includes a-cutoutportion wherein a pair ,of extending ears 48 are provided, and positioned between these ears is a bar 49 terminating at 59, whereby a portion of the member 48 will normally underlie the upper; portion 5! of the member 34 to retain the .ex-- tending pipe arrangements in fixed position, -withrthe members 49 being pivotallysecured to the; ears 4B-by meansof'the bolts 52. The members 49 terminate in the pipes or solid rods 53 which are coupled by means of couplings 54 to the lengthened transverse pipe members 55, and communicating with the pipe members 55 are the short nipples 56 to which are attached the rubber or other resilient pipes 51 which are attached at 58 to the extremities of the centrally arranged pipe 59 which is suitably secured in any desired manner at the rear of the angle member 30, the pipe 59 having a central pening at 80.

The pipes 55 are capped at 6| and communicating with the pipes 55 at equally spaced intervals are the short stub pipes 62 which include the housings 63 in which housings are received the check valves 64. The spray nozzles 55 are attached at the ends of the pipes 62 and beneath the members 63. Threadably engaged at 56, within the pipes 62 are the further short nipples 51 which include a portion 68 thereof, which extends substantially above the lower edges of the pipes 55, this arrangement serving to: provide means for the entrapment of sediment in me weed eradicating fluid, or other fluid, thus preventing the transference of such sediment to the. sprays which in many cases would interfere with the operation thereof.

Attached to the opening 60 is the lengthened flexible pipe 69 which is attached at 10 to a pump H which is suitably mounted on a bracket 12 which is suitably attached to the side of a tractor, the pump 1| communicating with a strainer unit 13, which in turn communicates with a further pipe 14 which passes to one of the drums 15 containing the fluid to be sprayed, Figures 1 and 2 showing an auxiliary drum also, these drums being contained within a trailer '15 having the centrally arranged wheel 11, the trailer 16 being hitched by means of the hitching member 18 which is attached at 19 to the tractor draw-bar, it being understood of course that: any other means of supporting the fluid can be used whether carried on the tractor itself or otherwise.

Attachedat 80 to the vertical angle members 23 are the laterally extending cables 8| which are attached to the caps 6| thereby serving to additionally support the laterally extending pipes 55.

Itwill now be noted that as the tractor is driven forwardly, and when the units are in the position as shown in Figures 1 and 2, that the ground surface will be efficiently sprayed by vir- 50 tue of the pumping action of the pump, and with the s pray being formed in the spray nozzles 65, and thence directed downwardly onto the ground. It will also be noted that in the event either one of the pipes 55 strikes against an obstacle, that the spring 39 will absorb all of such impact by v rtue of its connection to the member 31 and thepivotal action on the bolt 35. The arrow 82 indicates the direction of pivotal movement of the, pipes 55 when the pipes strike against an obstacle. The resilient pipes 51 absorb any pivotal motion of the extending spray pipes. I. It will be further noted that when it is desired to elevate the members 55 to vertical position for passing through gates or the like, they can be pivoted vertically about t e bolts 52 to the upward position as shown in Figure 4.

The spray jets can be raised to desired positionabove the ground level as explained above, by raising the 23, as well asthe jets in the same vertical position at all times as will be readily apparent, the

4 bolts 29 serving to hold the unit in any selected raised position, by inserting these bolts in any of the selected openings 21, and in some cases where the jets may be inclined, the same feature will apply.

The check valves 54 are set for a pre-determined pressure so that at very low pressures the check valves will close the sprays, thereby preventing dripping of the liquid which would have the objectionable feature of providing excess fluid where such excess is not desired.

Figure 6 illustrates a modified form of structure wherein attached to the pipes 55 are the rings 83 to which are attached the brackets 84 which are attached to the substantially arcuate members 85 to which members are attached the canvas or other coverings 85, these coverings extending the entire length of the pipes 55. The purpose of this arrangement is to prevent the spray from being wasted, the entire spraying action thence being applied downwardly.

As shown in Figure 1, the pump H is driven by means of a pair of belts 83 passing over the pulley 84 which is the usual power driven pulley of the tractor, it being understood however that the pump can be powered from the tractor by any other means.

It will now be seen that I have provided the various advantages set forth in the objects of my invention with various other advantages being readily apparent.

Some changes may be made in the construc tionand arrangement of the parts of my invention without departing from the real spirit and purpose of my invention, and it is my intention to cover by my claim any modified forms of structure or use of mechanical e uivalents which may be reasonably included within their scope.

I claim as my invention:

A tractor mounted spray device comprising a framework attached to the forward end of the tractor, laterally extending spraying pipe members, joints between said framework and said spraying pipe members, said. joints including ears extending from said framework, square members positioned between said ears and pivoted thereto, springs attached to the inner end of said square members, said cars including extending portions to which said springs are attached, said square members including further extending ears, said spraying pipe members including extending portions received between said further extending ears and pivotally secured thereto, said further extending ears being positioned at right angles to said cars.

ROY F. BROYHILL.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

